brooklyns357
21.03.2021 •
Mathematics
Solve 3x + y = 8 and x - 3y =11
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Ответ:
x=5 y= -2
Step-by-step explanation:
3x+y=8 *3
x-3y=11
6x+3y=24
+ x-3y=11
7x=35
/7
x=5
5-3y=11
-5
-3y=6
*-1
3y=-6
/3
y=-2
hopes it helps
Ответ:
2